Table 3. User assessment of the usefulness of the characteristics and features of the 3D PDF.
| Features | N | Mean | Std. Dev. | Agree | Somewhat agree | Somewhat disagree | Disagree |
| (4) | (3) | (2) | (1) | ||||
| Interactive Zooming and viewing of the 3D model from all directions | 26 | 3.7 | .5 | 76.9% | 19.2% | 3.8% | 0% |
| Interactive Selection of different views and resection proposals | 26 | 3.6 | .6 | 61.5% | 34.6% | 3.8% | 0% |
| Interactive show/hide of the liver parenchyma | 26 | 3.4 | .8 | 57.7% | 30.8% | 7.7% | 3.8% |
| Tables and informational text for case summary | 26 | 3.5 | .6 | 53.8% | 38.5% | 7.7% | 0% |
| Tables and informational text for the currently selected 3D view | 25 | 3.5 | .7 | 56.0% | 36.0% | 8.0% | 0% |
| Summary of all information in one page (without scrolling) | 25 | 3.4 | .7 | 52.0% | 40.0% | 8.0% | 0% |
| Grouping of all information in one file | 24 | 3.5 | .7 | 66.7% | 20.8% | 12.5% | 0% |
| Independence of pre-installed dedicated software (except Adobe Reader) | 23 | 3.6 | .6 | 60.9% | 34.8% | 4.3% | 0% |